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--- lab:ansible_virtualbox_autoboot_linux:delete_the_first_ubuntu_vm_using_ansible [2024/01/19 04:22] – [Why So Complicated?] user
+++ lab:ansible_virtualbox_autoboot_linux:delete_the_first_ubuntu_vm_using_ansible [2024/05/10 05:15] (current) – removed user
@@ Line 1: / Line 1: @@
-====== Delete the first Ubuntu VM using Ansible ======
-Let's look at using Ansible to remove this first VM. Exit out of the user ''ansible''.
-===== Simple Playbook =====
-<file yaml destroy_vm.yml>
----
-- hosts: localhost  # Run on the local machine
-  connection: local
-  gather_facts: false
-  vars_files:
-    - variables.yml
-  vars:
-    vm_name: my_vm
-  tasks:
-  - name: Remove any old VM with this name
-    command: "{{ Global.vboxmanage_path }} unregistervm --delete {{ vm_name }}"
-</file>
-Try this with the VM running. Note how it fails.
-===== Attempt 2 Playbook =====
-<file yaml destroy_vm.yml>
----
-- hosts: localhost  # Run on the local machine
-  connection: local
-  gather_facts: false
-  vars_files:
-    - variables.yml
-  vars:
-    vm_name: my_vm
-  tasks:
-  - name: Shut down VM with this name
-    command: "{{ Global.vboxmanage_path }} controlvm {{ vm_name }} acpipowerbutton"
-  - name: Remove any old VM with this name
-    command: "{{ Global.vboxmanage_path }} unregistervm --delete {{ vm_name }}"
-</file>
-Try this with the VM running. Note how it fails to work as expected. The vm stops, but is not removed. What ideas do you have to do this? There are many ways.
-===== Better Playbook =====
-This is a quick and dirty solution, no better than running the commands manually.
-<file yaml destroy_vm.yml>
----
-- hosts: localhost  # Run on the local machine
-  connection: local
-  gather_facts: false
-  vars_files:
-    - variables.yml
-  vars:
-    vm_name: my_vm
-  tasks:
-  - name: Shut down VM with this name
-    command: "{{ Global.vboxmanage_path }} controlvm {{ vm_name }} acpipowerbutton"
-  - name: Pause 1 minute
-    pause:
-      minutes: 1
-  - name: Remove any old VM with this name
-    command: "{{ Global.vboxmanage_path }} unregistervm --delete {{ vm_name }}"
-</file>
-===== Why So Complicated? =====
-Oracle Virtualbox doesn't have the nice modules for Ansible that VMware vCenter has. The GUI interface is the easiest, but we can do the changes by command line.
-Ansible can do the logic we want, but it's not straightforward:
-  - Is the VM powered on? How can we do that with Ansible?
-    * If yes, power it off
-  - Is the VM now off?
-  - Delete the VM
-  - And yes, error handling
-wait_for is a useful command. We could store the VM servers we create in a local table by VM, hostname name and IP. Then script off of that.
-====== Next Step ======
-OK, we did the easy bit first. When you are ready for a challenge, continue to [[Deploy a Fleet of VMs]]
-Or back to [[Test the First Ubuntu VM on Ansible]]